Saturday, February17, 2018 L-36.com


Marine Weather and Tides
Montesano, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:12AMSunset 5:45PM Saturday February 17, 2018 6:59 PM PST (02:59 UTC) Moonrise 8:21AMMoonset 7:50PM Illumination 8% Phase: Waxing Crescent; Moon at 3 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help
PZZ110 Grays Harbor Bar- 222 Pm Pst Sat Feb 17 2018
.small craft advisory for rough bar in effect through Sunday afternoon... Combined seas around 14 to 17 feet with breakers likely. Bar conditions severe. Maximum ebb currents will occur around 530 pm today and 6 am Sunday.
PZZ100 222 Pm Pst Sat Feb 17 2018
Synopsis for the northern and central washington coastal and inland waters..Low pressure over the area will shift south as high pressure over british columbia pushes south toward the area. Fraser outflow winds will develop overnight. The cold northerly winds will ease Monday and pressure gradients will be light on Tuesday.

7 Day Forecast for Marine Location Near Montesano, WA
   Hourly   EDIT   Help
location: 46.97, -123.6     debug


Area Discussion for - Seattle, WA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksew 180005
afdsew
area forecast discussion
national weather service seattle wa
405 pm pst Sat feb 17 2018

Synopsis The low center which brought today's active weather
will exit east this evening. A modified arctic cold front will
move southward through western washington late tonight and early
Sunday, bringing the possibility of lowland snow followed by
strong north winds. Dry conditions are expected from late Sunday
through Tuesday with cold temperatures remaining in place. Another
system could slide in from the northwest around next Wednesday,
with light snow possible. More systems are possible on Friday and
Saturday, with light precipitation and low snow levels.

Short term Deepening 996 mb surface low is now over northeast
washington and exiting east. Therefore, strong westerly wind over
the forecast area will ever so slowly start to ease over the next
few hours. Heavy snow over the cascades will also ease, though a
puget sound convergence zone may keep stevens pass going strong
for a while longer. With today's heavy snow and strong wind, an
avalanche warning is also in effect for a few more hours in the
cascades.

In the wake of today's low center, a a continental polar air mass
will quickly spread south through interior b.C. And come pouring
out of the fraser later tonight. The bli-cywl gradient is forecast
to peak near -20 mb on Sunday morning, making this a strong
fraser outflow event. Strong north- northeast winds will ensue,
most notably near bellingham, the san juans, and around to
admiralty inlet. Other places will be breezy as well. The
windiness from the less common northerly direction will have
greater tree impacts than a similar south wind. A modified arctic
front will spread south and southwest through western washington
early Sunday morning, with localized frontal convergence and
orographic lift leading to some lowland snow accumulations. The
average forecast snowfall up and down the i-5 corridor will be
about 1 to 2 inches. However, all meso models show a distinct hole
in the snowfall pattern from poulsbo over to seattle, likely from
precip shadowing downwind of the olympics in northwest flow
aloft. So that is why the bremerton and seattle forecast zones are
excluded from the winter weather advisory over the lowlands. Some
local enhancement of snow is expected just away from the water
near port angeles due to north-northeast wind upsloping against
the north slope of the olympics, so the forecast there is for 2-4
inches of snow.

The front will be followed by the coldest air mass of this winter.

A hard freeze is expected areawide on Sunday night, with Monday
night likely being the coldest night of the upcoming cold spell.

At least the cold will come with drier weather. The last showers
will taper off over the cascades on Sunday night or Monday, with
dry weather expected Monday and Monday night.

The NAM and GFS keep Tuesday dry as well. The ECMWF tries to
develop a warm advection nose of precip over western washington on
tue. Since only two of the GFS ensemble's 20 members show precip
at hqm on Tuesday, have kept pops on the low side. If any precip
does occur on tue, it would still be cold enough for snow, even at
the coast. Haner

Long term A cool northwest flow pattern will continue from wed
through sat. A system diving down from the northwest on Wed could
very well spread light precip across western washington, with
light snowfall accumulations. A lull in precip is possible thu.

More precip with more weak shortwaves on Fri and sat. The 12z
ecmwf was colder than the 12z gfs, but the 18z GFS seems to be
coming around to a cooler solution. This would keep snow levels at
or below 1000 feet, a situation of the snow threat continuing on
higher lowland hills but less so at sea level. Haner

Aviation The front is moving inland and strong onshore flow and
a showery air mass will prevail this evening. A heavy band of pscz
showers were up over snohomish county this afternoon and a squall
moved through the strait. The showers overnight will turn over to
scattered snow showers as the air cools and then they will move
south around daybreak with clearing from the north.

Ksea... Scattered showers and blustery weather with SW winds will
give way to a north wind late tonight as the colder air pushes
south. Scattered snow showers around daybreak will probably give way
to pretty rapid clearing so much in the way of accumulation is not
expected in seattle--although a quick inch of snow in a shower is
possible.

Marine A 995mb low over southern b.C. Will sag south as the
cold high pressure system over b.C. Sags south. The modified arctic
front will be moving south through western washington before
daybreak Sunday--in fact cold fraser outflow northeasterly gales
should develop pretty quickly overnight--spreading down into the
port townsend to port angeles area well before daybreak. The switch
to northerly winds in puget sound will probably be around daybreak
for a raw brisk day. Gradients ease Monday and Monday night and by
Tuesday pressure gradients will be quite light.

Hydrology River flooding is not expected the next 7 days.

Sew watches warnings advisories
Wa... Winter weather advisory from 10 pm this evening to 9 am pst
Sunday for admiralty inlet area-bellevue and vicinity-
central coast-east puget sound lowlands-everett and
vicinity-hood canal area-lower chehalis valley area-north
coast-southwest interior-tacoma area-western skagit county.

Wind advisory until 8 pm pst this evening for bellevue and
vicinity-bremerton and vicinity-hood canal area-seattle and
vicinity-southwest interior-tacoma area.

Coastal flood advisory from 4 am to 8 am pst Sunday for
bremerton and vicinity-hood canal area-seattle and vicinity-
southwest interior-tacoma area.

Winter storm warning until 6 am pst Sunday for cascades of
pierce and lewis counties-cascades of snohomish and king
counties-cascades of whatcom and skagit counties.

Winter weather advisory from 8 pm this evening to 4 am pst
Sunday for san juan county-western whatcom county.

Wind advisory from midnight tonight to 6 pm pst Sunday for
western skagit county-western whatcom county.

Winter weather advisory until 10 am pst Sunday for olympics.

Wind advisory until 6 pm pst this evening for central coast-
north coast.

High wind warning until 9 pm pst this evening for admiralty
inlet area.

Wind advisory until 6 pm pst Sunday for san juan county.

Winter weather advisory from 10 pm this evening to 8 am pst
Sunday for eastern strait of juan de fuca-western strait of
juan de fuca.

Wind advisory until 9 pm pst this evening for eastern strait of
juan de fuca.

Pz... Small craft advisory for rough bar until 4 pm pst Sunday for
grays harbor bar.

Gale warning until 4 pm pst Sunday for admiralty inlet-coastal
waters from CAPE flattery to james island 10 to 60 nm-
coastal waters from CAPE flattery to james island out 10 nm-
coastal waters from james island to point grenville 10 to
60 nm-coastal waters from james island to point grenville
out 10 nm-coastal waters from point grenville to cape
shoalwater 10 to 60 nm-coastal waters from point grenville
to CAPE shoalwater out 10 nm-east entrance u.S. Waters
strait of juan de fuca-northern inland waters including the
san juan islands.

Gale warning until 3 am pst Sunday for central u.S. Waters
strait of juan de fuca-puget sound and hood canal-west
entrance u.S. Waters strait of juan de fuca.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPTW1 - 9441102 - Westport, WA 27 mi84 min WNW 27 G 37 45°F 49°F1005.9 hPa
TOKW1 - 9440910 - Toke Point, WA 27 mi42 min NW 19 G 23 44°F 49°F1007 hPa
46211 - Grays Harbor, WA (036) 35 mi60 min 49°F16 ft

Wind History for Toke Point, WA
(wind in knots)    EDIT      (on/off)   Help
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
Last
24hr
W6
G9
W7
G11
SW9
W6
G10
SW6
G11
SW10
SW9
G14
SW13
G17
SW12
G16
SW15
G20
SW14
G18
SW14
G21
SW15
G23
SW20
G25
W17
G28
SW19
G25
W20
G27
W22
G29
W22
G28
W23
G29
W20
G27
W15
G21
NW25
G32
W19
G26
1 day
ago
NW1
NW3
W6
G10
W10
G13
W8
G11
SW11
G15
W9
G17
W8
W8
W12
G16
W8
G13
W7
G11
W11
G19
W12
G16
W10
G15
SW13
G18
SW12
G19
SW14
G18
W8
G13
W9
G15
W8
G13
W8
G13
W6
G10
W10
G14
2 days
ago
NW5
NW5
N3
E6
E5
NW2
NW10
NW6
N3
E2
E1
G5
E8
N2
SE3
SE4
S7
W8
SW5
G8
W10
G13
W9
G13
W10
G13
W9
W5
G9
NW5
G8

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA20 mi67 minWSW 16 G 247.00 miLight Rain44°F37°F76%1005.8 hPa

Wind History from HQM (wind in knots)
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
Last 24hrSW8SW6SW8W6SW9SW10SW12S14S13S13S16S16
G24
S23
G30
S23
G29
SW24
G33
SW23SW28
G35
W22
G32
SW20
G29
----SW20
G30
W20
G34
W16
G24
1 day agoCalmN4NE3CalmN3S6S8W9W6SW10SW8SW11SW9SW12SW12SW13SW14S17SW12SW15SW15W8SW10SW9
2 days agoW6NW6CalmNE3CalmNE3E3CalmN3CalmE3NE3NE3NE5NE6NE6E5E3CalmW5W9W11W5NW5

Tide / Current Tables for Montesano, Chehalis River, Grays Harbor, Washington
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Montesano
Click for Map
Sat -- 03:51 AM PST     8.60 feet High Tide
Sat -- 07:15 AM PST     Sunrise
Sat -- 08:20 AM PST     Moonrise
Sat -- 09:48 AM PST     2.34 feet Low Tide
Sat -- 03:30 PM PST     9.01 feet High Tide
Sat -- 05:42 PM PST     Sunset
Sat -- 07:49 PM PST     Moonset
Sat -- 10:08 PM PST     0.52 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.65.47.18.28.686.85.33.92.72.43.35.16.88.18.98.98.16.54.62.81.30.51.1

Tide / Current Tables for Cosmopolis, Chehalis River, Grays Harbor, Washington
   EDIT      (on/off)   Help   One Week of Data
Cosmopolis
Click for Map
Sat -- 02:43 AM PST     11.22 feet High Tide
Sat -- 07:15 AM PST     Sunrise
Sat -- 08:18 AM PST     3.05 feet Low Tide
Sat -- 08:21 AM PST     Moonrise
Sat -- 02:22 PM PST     11.76 feet High Tide
Sat -- 05:42 PM PST     Sunset
Sat -- 07:50 PM PST     Moonset
Sat -- 08:38 PM PST     0.68 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.79.610.911.210.28.46.34.43.13.55.27.49.410.811.711.510.17.85.12.71.10.82.34.7

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (22,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Portland, OR
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.